Redness in the armpits can be relieved and improved by medication and physical therapy, but because there are many causes of redness in the armpits, such as moist skin, folliculitis or eczema, the treatments are also different. 1. Damp skin: because the armpit hair is more, and contains a large number of hair follicles, sebaceous glands and sweat gland tissue, so the secretion of sweat is more, due to the long-term infiltration of sweat, it is easy to lead to the emergence of armpit redness, the patient needs to keep the local skin dry, ventilated, but also through the use of external prickly heat powder to alleviate, improve. 2. Folliculitis: If the sebaceous gland secretion under the armpit is more vigorous, or the sebaceous gland secretion can not be discharged in time, it is easy to cause the hair follicle under the armpit to be blocked and cause folliculitis, and there is a case of redness in the armpits, the patient can be treated by using topical mupirocin ointment, fusidic acid ointment and so on, combined with oral medication of clindamycin, amoxicillin capsules and other drugs. 3. Eczema: armpit redness may also be localized skin eczema caused by the diagnosis of the patient can be through the use of glycerine lotion, glucocorticosteroids such as mometasone furoate cream and other drugs for treatment, if the symptoms are more serious, if necessary, but also through ultraviolet light therapy and other physical means of alleviation to improve. Because of the axillary redness caused by a number of factors, so when the patient appears related to the discomfort symptoms, it is recommended that the hospital examination and diagnosis, as soon as possible to clarify the cause of the disease to take targeted therapeutic measures, to avoid misunderstanding of the condition caused by the aggravation of the symptoms. The above drugs need to be used in accordance with medical advice.